Sfs-Intec Holding Ag

Kurt Blum

Daniel Gasser

Thomas Heinzmann

A grommet () as part of a fastening element for a building envelope essentially comprises a head (), a tip () and a sleeve () therebetween, wherein the head () is essentially constructed as an extensive washer (), the central hole of which is adjoined by the tubular sleeve (). The tip () narrows essentially in a conical or tapered manner to a smaller diameter. The grommet () has a sensor arrangement (), with at least one RFID transponder with antenna and a sensor operatively connected to the transponder.

Sensor arrangement with RFID

A method for fastening material webs, such as roofing sheets made of plastic on a surface with fastening points (head disks including a hot-melt adhesive layer) arranged thereon using a self-propelled fastening unit () comprising the following steps: (A) detecting a route marking by means of a first detector () on the fastening unit () and moving the fastening unit along the route marking; (B) detecting and calculating the position of a head disk () by means of a second detector (); (C) approaching and remaining at an operating position during the subsequent fastening process; (D) positioning an induction heater () and heating up the head disk () for a period of time Th; (E) removing the induction heater () and pressing the material web against the head disk by a cooling device (); (F) taking off the cooling device after a predetermined time Tk has passed; (G) continuing with (A), until an end of the route marking is reached.

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Koblach, Austria

Kurt Blum